河外伽马射线双星 LMC P3 的变 VHE 伽马射线辐射探测
高能天体物理现象
2018-03-07 v1
摘要
背景。近期，位于大麦哲伦云（LMC）中的天体 LMC P3 的高能（HE，0.1–100 GeV） 射线辐射被发现具有 10.3 天的周期调制，这使其成为首个河外 射线双星。目的。本工作旨在探测甚高能（VHE，>100 GeV） 射线辐射，并搜寻 VHE 信号随双星系统轨道周期的调制。方法。LMC P3 已使用高能立体系统（H.E.S.S.）进行观测；经接受度修正后的曝光时间为 100 小时。为检验辐射的变异性，数据集已按系统已知轨道周期折叠。对轨道平均数据集以及 VHE 极大附近的轨道相位区间分别获取了能谱。结果。VHE 射线辐射以 6.4 的统计显著性被探测到。数据清晰显示出与系统轨道周期锁相的变异性。仅由 H.E.S.S. 数据集无法推断周期性。在 TeV 能量范围内的轨道平均光度为 erg/s。在 20% 的轨道周期内达到 erg/s 的光度。HE 与 VHE 射线辐射呈反相关。LMC P3 是迄今已知最明亮的 射线双星。
引用
@article{arxiv.1801.06322,
title = {Detection of variable VHE gamma-ray emission from the extra-galactic gamma-ray binary LMC P3},
author = {H. E. S. S. Collaboration and H. Abdalla and A. Abramowski and F. Aharonian and F. Ait Benkhali and E. O. Angüner and M. Arakawa and M. Arrieta and P. Aubert and M. Backes and A. Balzer and M. Barnard and Y. Becherini and J. Becker Tjus and D. Berge and S. Bernhard and K. Bernlöhr and R. Blackwell and M. Böttcher and C. Boisson and J. Bolmont and S. Bonnefoy and P. Bordas and J. Bregeon and F. Brun and P. Brun and M. Bryan and M. Büchele and T. Bulik and M. Capasso and S. Caroff and A. Carosi and S. Casanova and M. Cerruti and N. Chakraborty and R. C. G. Chaves and A. Chen and J. Chevalier and S. Colafrancesco and B. Condon and J. Conrad and I. D. Davids and J. Decock and C. Deil and J. Devin and P. deWilt and L. Dirson and A. Djannati-Ataï and W. Domainko and A. Donath and L. O'C. Drury and K. Dutson and J. Dyks and T. Edwards and K. Egberts and P. Eger and G. Emery and J. -P. Ernenwein and S. Eschbach and C. Farnier and S. Fegan and M. V. Fernandes and A. Fiasson and G. Fontaine and A. Förster and S. Funk and M. Füßling and S. Gabici and Y. A. Gallant and T. Garrigoux and F. Gaté and G. Giavitto and B. Giebels and D. Glawion and J. F. Glicenstein and D. Gottschall and M. -H. Grondin and J. Hahn and M. Haupt and J. Hawkes and G. Heinzelmann and G. Henri and G. Hermann and J. A. Hinton and W. Hofmann and C. Hoischen and T. L. Holch and M. Holler and D. Horns and A. Ivascenko and H. Iwasaki and A. Jacholkowska and M. Jamrozy and D. Jankowsky and F. Jankowsky and M. Jingo and L. Jouvin and I. Jung-Richardt and M. A. Kastendieck and K. Katarzyński and M. Katsuragawa and U. Katz and D. Kerszberg and D. Khangulyan and B. Khélifi and J. King and S. Klepser and D. Klochkov and W. Kluźniak and Nu. Komin and K. Kosack and S. Krakau and M. Kraus and P. P. Krüger and H. Laffon and G. Lamanna and J. Lau and J. -P. Lees and J. Lefaucheur and A. Lemière and M. Lemoine-Goumard and J. -P. Lenain and E. Leser and T. Lohse and M. Lorentz and R. Liu and R. López-Coto and I. Lypova and D. Malyshev and V. Marandon and A. Marcowith and C. Mariaud and R. Marx and G. Maurin and N. Maxted and M. Mayer and P. J. Meintjes and M. Meyer and A. M. W. Mitchell and R. Moderski and M. Mohamed and L. Mohrmann and K. Morå and E. Moulin and T. Murach and S. Nakashima and M. de Naurois and H. Ndiyavala and F. Niederwanger and J. Niemiec and L. Oakes and P. O'Brien and H. Odaka and S. Ohm and M. Ostrowski and I. Oya and M. Padovani and M. Panter and R. D. Parsons and N. W. Pekeur and G. Pelletier and C. Perennes and P. -O. Petrucci and B. Peyaud and Q. Piel and S. Pita and V. Poireau and H. Poon and D. Prokhorov and H. Prokoph and G. Pühlhofer and M. Punch and A. Quirrenbach and S. Raab and R. Rauth and A. Reimer and O. Reimer and M. Renaud and R. de los Reyes and F. Rieger and L. Rinchiuso and C. Romoli and G. Rowell and B. Rudak and C. B. Rulten and V. Sahakian and S. Saito and D. A. Sanchez and A. Santangelo and M. Sasaki and M. Schandri and R. Schlickeiser and F. Schüssler and A. Schulz and U. Schwanke and S. Schwemmer and M. Seglar-Arroyo and M. Settimo and A. S. Seyffert and N. Shafi and I. Shilon and K. Shiningayamwe and R. Simoni and H. Sol and F. Spanier and M. Spir-Jacob and Ł. Stawarz and R. Steenkamp and C. Stegmann and C. Steppa and I. Sushch and T. Takahashi and J. -P. Tavernet and T. Tavernier and A. M. Taylor and R. Terrier and L. Tibaldo and D. Tiziani and M. Tluczykont and C. Trichard and M. Tsirou and N. Tsuji and R. Tuffs and Y. Uchiyama and D. J. van der Walt and C. van Eldik and C. van Rensburg and B. van Soelen and G. Vasileiadis and J. Veh and C. Venter and A. Viana and P. Vincent and J. Vink and F. Voisin and H. J. Völk and T. Vuillaume and Z. Wadiasingh and S. J. Wagner and P. Wagner and R. M. Wagner and R. White and A. Wierzcholska and P. Willmann and A. Wörnlein and D. Wouters and R. Yang and D. Zaborov and M. Zacharias and R. Zanin and A. A. Zdziarski and A. Zech and F. Zefi and A. Ziegler and J. Zorn and N. Żywucka},
journal= {arXiv preprint arXiv:1801.06322},
year = {2018}
}
备注
5 pages, 3 figures, 1 table, accepted for publication in A&A